Beating-engine.



s? rs .JOHN s. enum, or ARLINGTON nnren'rs, omo.

nnarmofnnernn.

amener.

Specification of Letters Patent. Patent-@d ,Sapri 26,- gfil pacman ned november i, 1ers. serrano. 58,944. v j

angJngines, oi' which the following is av i for the treatment full, clear, and exact description, reference being made to the accompanying drawing, forming part of this specification.

My invention relates to beating engines the manufacture of paper, and the object' of my invention is to provide a pulp reducing apparatus oi the beating engine type which will work on the material continuously, instead otf intermittently, as is the case with the ordinary beating engines.

While machines have been devised to treat paper pulp continuously, the ordinary method is to heatlup the paper Astock 'with water in what is called a beating engine, comprising an oblong tub, having a middle partition and provided with a transverse cylinder on one side of the partition rotated by power andfcarrying lengthwise bars for dividing and macerating the'stock against a bedv plate at the bottom of' the tub, whence the stock is carried up over a fallhlock and `thence around the middle partition and back again to the heating cylinder. To pre1 parc the average stock ztor the sheet machines7 or the Jordan machines, takes from one and'one-half to threehours, and ninety per cent. or more of that time is occupied in the stock traveling from the fallbloclr back'to the heater, thus wasting time and power. Then in the ordinary methods, for each hatch of stock, the machine'hasI to be emptied and refilled, at the loss of time and labor. It is to overcome these objections tht my inventionis directed, and while I.

make use of the present style of beating engine, I proposeto work' the engine continuously and to run ofi/by gravity the stock from the first heater into another beater of different construction where it will be fully prepared for sheet orlJordan machines in passingthrough the second machine.

My invention consists of that certain 'l of my improved machine.

of paper pulp fornse in A the pulp mass is carried be hereinafter particularly pointed out and claimed, whereby the stock may he run continuously by gravity from the first to theA .second machine and bevully treated in passlng through the two-machines.

In the drawing, Figure l F ig. 2 is a transverse section taken on the lines 2, 2 of Fig'. l.

. Fig.. 3 is a detail in longitudinal section ofv the inner endet the second beater. f

The paper `stock to be treated is deposited in the ordinary heating engine which conm" prises an oblong tub 1,'provided with a mid. die partition 2, and transverse the middle of which tub is mounted i the cylinder 4, provided with longitudinal hars '5. The beating cylinder is rotated. in the usual way by a' belt 6 running over pulley 7 on the outer end of the shaft 3. The

novel construction and arrangement of parts' to is a plan view.

the shaft 3, carrying paper stock to be. reducedl to the pulp is filledA into the tub at one end and carried by the circular motion induced by the rotation of the heatingcylinder underneath the cyl' inder where the arr-ns crush and mash the material against the bed upover the hackfall 8 and ,dicated by the arrows in Fig., l.

The beating engine thus far described is Iof the ordinary and well known construction. There is a cover or housing for the beating cylinder which covers'the same and prevents .the stock from being thrown out of the machine, but this cover has been re.- moved from the plan view shown in Fig. l.

My invention consists particularly in the construction and use of the ,secondmachind which is located in close first machine, preferably y at a Somewhat lower level and to which 'zel plate and -thence ,o

around in a circular path as inproximity to the y eo' the stock froml the tub l is supplied by gravity through the trough 9, which connects with the` upper portion of the -tub 1 at one end, and the supply oi. material delivered to the trougii is controlled 'by the gate i0 operated by the hand wheel ll. j v

The 'second tub '13 is semircylindricai in shape, withl an opening in the end wall for the entrance of the trough 9, and with the 10C discharge outlet llv at theother end .near the bottom controlled by a suitable valve. In order to clear the tub l, the opening for the grate is carried to the bottom ot' the. tuh and the lower part ot' the opening is closed by a valve adapted to'be opened to run otf all the contents ot tub l when a dill'erent grade ot paper stock is to he prepared. The trough Si is also extended to the hot-tom of tub 1, and the lower portion of the trough serves as a sand trap to catch foreign material heavier than the pulp. Mounted lengthwise and centrally through this trough is the shaft 15 carrying a series of cylindrical beater rolls 1G, 17 and 18. These beater rolls are separated from each other and the beater bars are spaced somewhat closer to- V,gather on the roll 17 than on 16 and closer together on 18 than on 17. The shaft'l is journaled in. a suitable framework 19, 19, at the ends, and the shaft is driven by the pulley 2G mounted thereon and belt-21 hy the saine power that drivesl the belt'and pulley (i, 7, ofthe first tub, and the semi-cylindrical hed is covered by a senoi-cylindrical` housing or cover 22 properly bolted or 'otherwise secured on the bed 13. Battle plates 23, 23, are secured to the inside'ot the cover 22 and extend down between the rolls about to the bottom ot the cover, thus separating the upper haltl of the beater rolls and acting to retard the stock and keep itin a true rotary motion.

There are three separate bed plates 24C, one for each of the three beating cylinders of the same kind that is used in the ordinary beating engine.

Of course it will be understood that suitable packing glands are employed to keep the stock from. working out along the shaft 15, and that ample provision is made for the removal and replacing ot' the bed plates so that any one can be removed or put back independently of the others. 'The A bed plates are preferably wider than those ordiuarily used, so aS to give a little more Working surface.

I have made no eilort in the foregoing description, to either show or describe the details of the packing boxes, bolts and screws, as the manner of construction and securing ot' parts will be evident to any skilled mechanic.

ln the use of the apparatus, the tub 1 is filled with water and paper stock in the ordinary way. After the stock has passed around the tub 1 one or more times, itwill be found that the material will then be in condition to be run through the ,gate 11 and trough 9 into tub 13, andas the stock is run by gravity through the trough il, the heating cylinders are rotated and the mate.-

rial thoroughly beaten up hy thethree oi beaters, so that by the tinie'the stock has reached the farther cnd of `thc tuh 13, `it G5 will be in condition to hc discharged through the outlet. lVhen the machine 'is in tull operation, the level in the two tuhs will be the same, and there will bc a slow current continuously through the trough .9.

the machine continuously and the stock treated in from twenty to thirty minutes.

Having thus described my invention, what I claim as new and desire to secure by Letters Patent, iszl. An apparatus ot the character specified, comprising an oblong tub with a median partition and a cylindrical beater transverse the tub and on one side ot' the partition, said tubhaving an outlet at the upper edge, a second receptacle located slightly lower than the former, with an inlet at 'one end and a gravity liow from one tub to the other, a series of cylindrical beaters mounted lengthwise of said second tub,"

and a discharge outlet of less capacity than the inlet from the second tub at the other end.

2. An apparatus of the character specilied,I comprising an oblong tub with a median partition and a cylindrical beater transverse the tub and on one side of the partition, said tub havingan outlet at the upper edge, a second receptacle located slightly lower than the former, with an inlet at one end and a gravity flow from one tnh to other, a series of cylindrical beaters mounted lengthwiselof said second tub, with beater bars for the cylinders arranged progressively closer together for each successive cylinder, and a discharge outlet of less capacity than the inlet from the second. tub vat the other end..

3. An apparatus ot the character specified, comprising an oblong tub with a median partition and'a cylindrical beater 110 transversethe tub and on/ one side of the partition, said tub having an outlet at the upper edge, Iwith a gate to regulate the opening, a second receptacle located slightly lower than the former, with an inlet at one end and a gravity flow from one tub to the other, a series of cylindrical beaters mounted lengthwise of said second tub; and a discharge outlet of. less capacity than the inlet from the second tub at the other end, with baille plates between the beating cylinders to inclose. the upper portions thereof.

4. An apparatus of the character specified, comprising an oblong,l tub With amedian partition and a cylindrical beater transverse the tuh and on one side of the partition, said tub having an outlet at the upper edge, With a gate to regolate the opening, a second receptacle located slightly lower than the former, Witlian inlet at one end and a gravity flow from one tub to the other, a series of cylindrical beaters mounted lengthwise of said second tub, with beater bars for the cylinders arranged progressively closer together for each suocessive cylinder, less capacity than the inlet from the second tub at the other end, with ybaHie plates between the beating cylinders to nclose the upper portions thereof.

' JOHN A. CRUM.

and a discharge outlet of 

